Pearl iZUMi Men's X-Road Fuel IV-M Cycling Shoe Upper: 65% Rubber/Plastic/33% Textile/2% Steel Ring; Sole: 68% Rubber/20% Ethylene Vinyl Acetate/10% Nylon Plastic/2% Steel. Imported Synthetic sole Low cut construction for a light, fast fit and feel, quick drying, highly breathable mesh/synthetic upper Built in lace garage eliminates drivetrain interference X-road nylon plate delivers great pedaling stability, power and efficiency with off-the-bike comfort and walk-ability Rubber lugged outsole for superior traction and durability Flexible forefoot and a running shoe beveled heel, spd compatible